Performance and carcass characteristics of lambs fed a solution of crude glycerin during feedlot and pre-slaughter lairage

Silva, Fredson Vieira e; Borges, I.; Silva, Vandenberg Lira; Lana, Ângela Maria Quintão; Borges, Ana Luíza Costa Cruz; Reis, Sidnei Tavares dos; Araújo, A. R.; Matos, Aylle Medeiros

doi:10.1590/rbz4720170032

Cited by 5 publications

(5 citation statements)

References 28 publications

(33 reference statements)

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“…Slaughter weight was responsible for a high percentage of the variation in HCW and CCW ( Table 3 ). Several authors claim that SW is the main responsible for variations in other carcass measurements [ 3 , 7 , 24 , 25 ]. However, the inclusion of biometric measurements in the prediction equations increased R 2 and reduced RMSE ( Table 3 ).…”

Section: Resultsmentioning

confidence: 99%

Prediction of Carcass Traits of Santa Inês Lambs Finished in Tropical Pastures through Biometric Measurements

Gurgel

Difante

Neto

et al. 2021

Animals

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The aim of this study was to predict carcass traits of Santa Inês lambs finished in tropical pastures by using biometric measurements. Data originated from two experiments involving 56 lambs (32 in experiment I and 24 in experiment II). In both experiments, the sheep were finished in that were finished in pastures of Panicum maximum and Brachiaria brizantha, experiment I being conducted in the rainy season and experiment II in the dry season. The following biometric measurements were recorded before slaughter: body length (BL), withers height (WH), rump height (RH), thorax width (TW), rump width (RW), chest width (CW), heart girth (HG), thigh circumference (TC), rump circumference (RC) and leg length (LL), in addition to live weight at slaughter (SW). After slaughter, hot carcass weight (HCW), cold carcass weight (CCW) and the weights of primal cuts (shoulder, neck, loin, leg and rib) were recorded. In the equations generated to predict SW, HCW and CCW, R2 ranged from 0.58 to 0.91 and the measurements of WH, TC, CW, HG and RW were the most relevant. In the equations developed to predict the weight of primal cuts, in turn, R2 ranged from 0.26 to 0.99. In these models, SW, BL, CW, TC, LL and HG explained most of the variation in the weight of primal cuts. Biometric measurements can be used to accurately and precisely predict HCW, CCW and the weight of primal cuts from the carcass of Santa Inês sheep finished in tropical pastures, since the equations presented R2 and correlation coefficient and agreement above 0.8.

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Section: Resultsmentioning

confidence: 99%

Prediction of Carcass Traits of Santa Inês Lambs Finished in Tropical Pastures through Biometric Measurements

Gurgel

Difante

Neto

et al. 2021

Animals

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“…The lack of effect of cultivars on body weight, LWS, and the biometric characteristics evaluated in vivo and in the carcass may be related to the weight criterion chosen for slaughter (Oliveira et al, 2017;Silva et al, 2018). However, it is noteworthy that the animals that grazed in the pastures of Piatã and Massai cultivars needed about two more weeks to reach the stipulated weight for slaughter.…”

Section: Discussionmentioning

confidence: 99%

“…Currently, the goal of beef sheep production is to obtain carcasses with a greater amount of muscle and fat levels that are not excessive yet sufficient to guarantee the juiciness and flavor of the meat (Urbano et al, 2017). The main characteristics studied in carcass evaluation are weight, yield, state of greasiness, and conformation (Oliveira et al, 2017;Silva et al, 2018), while the factors that determine carcass quality are genotype, sex, age, rearing system, and health (Ekiz et al, 2012;Hopkins & Mortimer, 2014;Silva et al, 2020). Another important point to be evaluated in the production of sheep meat is the quality of the meat, which includes the characteristics of color, tenderness, and proximate composition (Santos et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Carcass characteristics, meat quality and composition of lambs finished in cultivated pastures

et al. 2022

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Thirty-two Santa Inês male lambs, not castrated, were distributed in a randomized block design to evaluate the effects of different tropical forage cultivars (two Panicum maximum (Syn. Megathyrsus maximus): Aruana and Massai, and two Brachiaria brizantha (Syn. Urochloa brizantha) Marandu and Piatã) on carcass characteristics, quality, physical composition, and meat chemistry. The data were subjected to an analysis of variance, and the means compared using the Tukey test at 5% significance. There was no effect of cultivars on body weight, slaughter weight, and biometric measurements of the carcass. The Aruana and Piatã cultivars provided higher weights of hot and cold carcasses when compared to the Massai and the Marandu had no significant differences compared to the others. The animals kept in the pasture of the Aruana cultivar showed higher shank yields. However, forage cultivars did not affect the ribeye area or subcutaneous fat thickness. There was also no effect of cultivar on pH, temperature, cooking losses, cooling losses, and meat shear strength. The cultivars did not change the quality and composition of the meat. However, the Aruana, Piatã, and Marandu cultivars were the ones that provided higher carcass weights and ham yields.

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“…The proportion of this ingredient in the diet was set at 96.90 g kg -1 of the total DM. This value was pre-fixed based on information from the scientific literature in which authors concluded that this rate did not change the intake or nutrient digestibility of goat and sheep diets (Gunn et al, 2010;Borges et al, 2013;Chanjula et al, 2014a;Silva et al, 2018). Diets were formulated to meet the requirements of crude protein and metabolizable energy and provide a gain of 200 g day -1…”

Section: Methodsmentioning

confidence: 99%

“…of the dry matter (DM) of diets for feedlot animals in the concentrate or in the water, it does not reduce nutrient intake, performance, or carcass and meat characteristics (Borges et al, 2013;Chanjula et al, 2014a;Silva et al, 2018). In addition to its use in the feeding of animals in feedlot, it is presumed that this feed can serve as a source of energy for pre-slaughter kids.…”

Section: Introductionmentioning

confidence: 99%

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

et al. 2018

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-This study evaluated the effects of crude glycerin (CG) supplied separately from the other dietary ingredients to goats during the feedlot and in the pre-slaughter lairage on the nutrient intake, performance, behavioral and physiological parameters, carcass characteristics, and meat quality. Twenty-eight uncastrated male goats from a cross between the Boer breed and mixed-breed goats were used in a completely randomized design in a 2 × 2 factorial scheme, consisting of the feedlot with or without CG inclusion in the diets (96.90 g kg -1 DM) and the pre-slaughter lairage, also with or without the ingredient. In the feedlot, goats fed CG had a lower intake of dry matter and nutrients. Crude glycerin intake reduced the weight gain and body weight of goats and increased feed conversion. Weights of carcass and cuts (leg, loin, ribs, and shoulder) were lower when the animals consumed CG in the feedlot. In pre-slaughter lairage, concentrations of cortisol were lower when the animals consumed CG. Characteristics of carcass and meat (pH, color, water holding capacity, cooking loss, and shear force) were not changed by the supply of CG during the pre-slaughter. When supplied during the feedlot period and separately from the other dietary ingredients, CG negatively affected the performance and carcass characteristics of goats without changing meat quality. In the pre-slaughter lairage, CG intake lowers the cortisol level and does not change the behavioral parameters or carcass and meat characteristics of goats.

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Performance and carcass characteristics of lambs fed a solution of crude glycerin during feedlot and pre-slaughter lairage

Cited by 5 publications

References 28 publications

Prediction of Carcass Traits of Santa Inês Lambs Finished in Tropical Pastures through Biometric Measurements

Prediction of Carcass Traits of Santa Inês Lambs Finished in Tropical Pastures through Biometric Measurements

Carcass characteristics, meat quality and composition of lambs finished in cultivated pastures

Performance and carcass characteristics of goats fed crude glycerin in the feedlot and during pre-slaughter lairage

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